in any case is an adverb meaning "used to indicate that a statement explains or supports a previous statement". It carries 2 recorded senses.
used to indicate that a statement explains or supports a previous statement
“Anyhow, he is dead now”
“I think they're asleep; anyhow, they're quiet”
“I don't know what happened to it; anyway, it's gone”
“anyway, there is another factor to consider”
“I don't know how it started; in any case, there was a brief scuffle”
“in any event, the government faced a serious protest”
“but at any rate he got a knighthood for it”
making an additional point; anyway
“I don't want to go to a restaurant; besides, we can't afford it”
“she couldn't shelter behind him all the time and in any case he wasn't always with her”
Definitions, synonyms and semantic relations for in any case come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.